Arm chair having a curved back



FIG. 1 is a front left perspective view of the arm chair having a curved back of the present invention;

FIG. 2 is a left side perspective view of the arm chair of FIG. 1;

FIG. 3. is a rear left perspective view of the arm chair;

FIG. 4 is a rear perspective view of the arm chair;

FIG. 5 is a right side perspective view of the arm chair;

FIG. 6 is a front right perspective view of the arm chair; and,

FIG. 7 is a front perspective view of the arm chair. 

The ornamental design for an arm chair having a curved back, as shown. 